Product Description
Grease fitting
Frequently Asked Questions
Q: What is the NI 48674-FS000 grease fitting and where is it used?
A: The NI 48674-FS000 is a grease fitting nipple that accepts a grease gun nozzle to lubricate lift truck joints including load wheel bearings, steering pivot points, and fork attachment pins. It provides an access point for preventive maintenance.
Q: What thread size is the NI 48674-FS000 and how does it mount?
A: Confirm the thread size (typically SAE 1/4 inch or metric M6) and the mounting hole diameter on your equipment. The fitting screws into a boss or press-fits into a prepared hole depending on your truck design.
Q: What grease type should I use with the NI 48674-FS000?
A: Use NLGI Grade 2 lithium-based or polyurea grease for most electric lift trucks. For cold storage equipment, use synthetic cold-temperature formulations. Consult your equipment manual for OEM grease specifications to prevent bearing damage.
Q: How often should I lubricate through the NI 48674-FS000?
A: Grease intervals depend on duty cycle and operating environment. For indoor warehouse use, lubricate every 250 operating hours. For heavy-duty or outdoor operation, reduce intervals to every 100 to 150 hours. Monitor bearing temperature and noise to detect over or under-lubrication.
Q: What material is the NI 48674-FS000 made from and can it rust?
A: The grease fitting is zinc-plated steel or stainless steel construction. Zinc-plated fittings can rust in wet or salt environments over time. For freezer or coastal operations, specify stainless steel to extend fitting life and prevent corrosion seizure.
Q: How do I replace a stuck or broken NI 48674-FS000 fitting?
A: A seized fitting requires careful removal without damaging the threaded boss. Once removed, clean the threaded hole and install the new NI 48674-FS000 fitting with a small amount of light grease on the threads. This allows future removal and prevents seizing.